what kind of chromium is it?
yes. there's straight-up chromium -- does all kinds of good things for the body. there's chrom 3, which is fairly benign, and then there's chrom 6, hexavalent chromium, which, depending on the amounts, can be very harmful.
with repeated exposure to toxic levels -- god, anything, really -- respiratory disease, liver failure, heart failure, reproductive failure, chronic headaches, bone or organ deterioration -- plus, of course, any type of cancer.
oh, yeah. definitely. highly toxic, highly carcinogenic. bad, bad stuff.
have you been to the water board?
every county has one. they keep records of anything water-related within their jurisdiction. you should be able to find something there.
good luck. oh -- i wouldn't advertise what you're looking for if i were you .
 incriminating records have a way of disappearing when people smell trouble.
well, what you have to remember is, if you have hex chrom in the water, you have it in anything that lived off the water.
what i'd do is start a collection. anything that existed in water, on water, under water
anything that had water flow over or under it .
anything that had water pass through it .
 collect 'em, label 'em, then bring 'em to me. i'll analyze 'em, see what we got.